如何解决方法'ToString'的'重载'需要'1'参数 [英] How do I solve No overload for method 'ToString' takes '1' arguments

问题描述

private void Apply_Filter(ref ReportDocument oRpt)
        {
            string str = "";
            string str2 = "XWV_RPT_REQLIST";
            str = str + " {" + str2 + ".REQNBR}=" + this.ReqNbr.ToString();
            str = str + " And {" + str2 + ".L_Language_Id}=\"" + Conversions.ToString(this.oUser.LANGUAGE_ID) + "\"";
            ReportDocument document = oRpt;
            document.set_RecordSelectionFormula(document.get_RecordSelectionFormula() + str);
            oRpt.Refresh();
        }

错误来自以下行

Error is coming on the below line

str = str + " And {" + str2 + ".L_Language_Id}=\"" + Conversions.ToString(this.oUser.LANGUAGE_ID) + "\"";

任何输入？请

Any inputs? Please

推荐答案

您的意思是

Do you mean

... Convert.ToString(this.oUser.LANGUAGE_ID) ...

而不是

instead of

... Conversions.ToString(this.oUser.LANGUAGE_ID) ...

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